A bracket clamping and welding device with a triangular structure

Abstract

The present invention belongs to the field of welding and fixing technology, and specifically discloses a bracket clamping welding device with a triangular structure, including parts to be welded, a clamping and fixing mechanism, an angle adjustment mechanism and a transverse adjustment mechanism, wherein the parts to be welded include a main beam and a reinforcing rib, and the clamping and fixing mechanism is provided with two groups, and the two groups of clamping and fixing mechanisms are respectively arranged on the main beam and the reinforcing rib, and the transverse adjustment mechanism is arranged on one group of the clamping and fixing mechanisms, and the angle adjustment mechanism is arranged on the transverse adjustment mechanism. The present invention can first complete the angle adjustment of the reinforcing rib and then perform the transverse adjustment of the reinforcing rib by driving only one driving motor; it not only simplifies the number of motors and the operating steps, but also can strictly limit the operating sequence between the three steps of clamping, angle adjustment and position adjustment by simply starting and stopping the switch.

Description

Technical Field

[0001] The invention belongs to the technical field of welding and fixing, and specifically refers to a bracket clamping welding device with a triangular structure. Background Art

[0002] The vehicle frame and the main frame of the equipment are mostly made of welded profiles, but since the quadrilateral has poor stability and is prone to deformation, the square three-dimensional frame is mostly divided into several triangular units by oblique reinforcement ribs.

[0003] The triangular structure bracket has the characteristics of high strength and high stability, but precisely because there is an unspecified angle between the sides of the triangle; therefore, it is also very difficult to adjust and fix the position between the two parts during welding.

[0004] The existing clamping and fixing structure not only has complicated operation steps, great difficulty in position adjustment and slow speed, but also has a contradiction between the degree of clamping firmness and the ease of operation of the fixing mechanism. Summary of the invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention proposes a triangular structure bracket clamping welding device with simple operation, anti-mistouch characteristics and high positioning strength; it is relatively labor-saving to clamp and adjust the position of the workpiece by motor or hydraulic pressure, but there is a strict sequence relationship between the two steps of clamping and adjustment; if the adjustment function is accidentally touched before clamping, the relative position between the workpiece and the fixture will be offset, and the position can only be readjusted after release; and in order to maintain the simplicity of manual operation, it is necessary to strictly limit the operation sequence between the three steps of clamping, angle adjustment and position adjustment without adding manual confirmation steps.

[0006] If these functions are implemented according to the traditional automation concept, through sensor feedback and host computer control, different types of sensors will need to be set for parameters such as pressure, angle, and position. The drive motor cannot use an ordinary motor or a stepper motor, but a servo motor that can be controlled by the host computer. Since there are many dimensions and axes to adjust, the above solution will inevitably have the problems of high cost, complex structure, and being unfavorable for promotion.

[0007] In order to solve the above problems, the present invention proposes a technical solution that combines a clamping and fixing mechanism, an angle adjustment mechanism and a lateral adjustment mechanism. Before the tightening stage is completed, even if the drive motor is started by mistake, the drive motor will only idle and cannot drive the angle adjustment mechanism and the lateral adjustment mechanism to move; after the tightening stage is completed, only by driving a drive motor, the angle adjustment of the reinforcement rib can be completed first, and then the lateral adjustment of the reinforcement rib can be performed; not only the number of motors and operating steps are simplified, but also the operating sequence between the three steps of clamping, angle adjustment and position adjustment can be strictly limited by simply starting and stopping the switch.

[0008] The technical solution adopted by the present invention is as follows: The present invention proposes a bracket clamping welding device with a triangular structure, comprising a part to be welded, a clamping and fixing mechanism, an angle adjustment mechanism and a transverse adjustment mechanism, wherein the part to be welded comprises a main beam and a reinforcing rib, the clamping and fixing mechanism is provided with two groups, the two groups of clamping and fixing mechanisms are respectively provided on the main beam and the reinforcing rib, the transverse adjustment mechanism is provided on one group of the clamping and fixing mechanisms, and the angle adjustment mechanism is provided on the transverse adjustment mechanism;

[0009] Furthermore, the clamping and fixing mechanism comprises a clamping bracket, an extrusion clamping assembly and a clamping feedback assembly, wherein the extrusion clamping assembly is arranged on the clamping bracket, and the clamping feedback assembly is arranged in the extrusion clamping assembly.

[0010] The clamping and fixing mechanism can not only realize the position fixation of the device between the main beam and the reinforcement rib respectively, but also can feed back the locking pressure at this time to the angle adjustment mechanism, so as to achieve the technical purpose that the angle adjustment mechanism and the lateral adjustment mechanism can be driven for adjustment only when the locking pressure reaches a certain level; the above-mentioned fool-proof design effectively reduces the problems caused by confusion in the operating steps and improves the fault tolerance rate during manual operation.

[0011] Preferably, the extrusion clamping assembly includes an extrusion guide frame, a clamping plate, a telescopic push rod and a pressure push plate, the extrusion guide frame is arranged on the clamping bracket, the clamping plate is snap-fitted and slidably arranged in the extrusion guide frame, the telescopic push rod is arranged on the clamping bracket, the pressure push plate is arranged on the telescopic part of the telescopic push rod, and the pressure push plate is snap-fitted and slidably arranged in the extrusion guide frame.

[0012] As a further preferred embodiment of the present invention, the clamping feedback assembly includes a pressure spring, a pressure sensing chamber and a pressure sensing piston, the pressure spring is arranged between the clamping plate and the pressure pushing plate, the pressure sensing chamber is arranged on the pressure pushing plate, the pressure sensing piston is arranged on the clamping plate, and the pressure sensing piston is snap-fitted and slidably arranged in the pressure sensing chamber.

[0013] By bringing the splint and the clamping bracket close to each other, the main beam and the stiffener can be squeezed and clamped; since the pressure of the splint is applied by the pressure push plate through the pressure spring, the compression amount of the pressure spring can be effectively fed back by feeding back the distance between the splint and the pressure push plate, so that when facing main beams or stiffeners of different thickness specifications, feedback can be given on "whether the clamping force meets the standard".

[0014] Furthermore, the angle adjustment mechanism includes a dual-mode drive component, an angle adjustment component and a drive clutch component, the dual-mode drive component is arranged on the lateral adjustment mechanism, the angle adjustment component is arranged on the lateral adjustment mechanism, and the drive clutch component is arranged on the angle adjustment component.

[0015] By driving the clutch state control of the clutch assembly, after the clamping is completed (the clamping force reaches a certain level), the drive motor is started to adjust the angle adjustment mechanism and the lateral adjustment mechanism, thereby avoiding the problem of parts displacement caused by accidental touch before clamping.

[0016] Preferably, the dual-mode drive assembly includes a motor rotation bracket, a drive motor, a coupling, a synchronous wheel, a synchronous belt and a drive control module, the motor rotation bracket is arranged on the transverse sliding slide, the outer shell of the drive motor is rotatably arranged in the motor rotation bracket, there is a rotational resistance between the outer shell of the drive motor and the motor rotation bracket, the coupling is arranged on the output shaft of the drive motor, one of the synchronous wheels is fixedly connected to the outer shell of the motor rotation bracket, the synchronous belt and the synchronous wheel are in rolling contact, and the drive control module is arranged on the angle adjustment assembly.

[0017] The output shaft and the housing of the drive motor can rotate relative to each other. When the housing is stationary, the output shaft of the drive motor can rotate with the coupling. When the output shaft of the drive motor cannot rotate, the drive motor will drive the transverse adjustment mechanism through the rotation of the housing.

[0018] As a further preferred embodiment of the present invention, the angle adjustment assembly includes an arc adjustment bracket, an arc adjustment arm, a worm rotation bracket, a hollow worm and a rotating shaft, the arc adjustment bracket is arranged on the transverse sliding slide, the drive control module is arranged on the arc adjustment bracket, the arc adjustment arm is slidably arranged in the arc adjustment bracket, the edge of the arc adjustment arm is provided with a helical tooth portion matching the hollow worm, the worm rotation bracket is arranged on the transverse sliding slide, the hollow worm is rotatably arranged in the worm rotation bracket, the rotating shaft is rotatably arranged in the hollow worm, and the output shaft of the drive motor and the rotating shaft are connected by a coupling.

[0019] The annular piston and the clutch control chamber can only slide axially relative to each other and cannot rotate relative to each other; the resistance of the hollow worm gear pushing the arc-shaped adjustment arm to slide is less than the resistance of the drive motor rotating in the motor rotating bracket. Therefore, the drive of the drive motor can actually be divided into two stages. In the first stage, only the angle adjustment mechanism can be driven. After the angle adjustment of the reinforcement rib is completed, the lateral adjustment mechanism can be adjusted.

[0020] As a further preferred embodiment of the present invention, the driving clutch assembly includes a clutch control chamber, an annular piston, a return spring and a coupling plate. The clutch control chamber is fixed to the end of the rotating shaft, the annular piston is slidably arranged in the clutch control chamber, the return spring is arranged between the bottom wall of the clutch control chamber and the annular piston, and two groups of coupling plates are arranged opposite to each other, one of the coupling plates is fixed to the end of the hollow worm, and the other of the coupling plates is fixed to the annular piston.

[0021] By controlling the amount of liquid in the clutch chamber, the engagement and separation of the two engagement plates can be controlled, thereby controlling the engagement and separation between the hollow worm and the rotating shaft, and further controlling whether the drive motor can drive the angle adjustment mechanism and the lateral adjustment mechanism to move.

[0022] Furthermore, the transverse adjustment mechanism includes a transverse guide assembly and a threaded transmission assembly, the transverse guide assembly includes a transverse base plate, a transverse guide rail, a transverse slider and a transverse slide plate, the transverse base plate is fixedly connected to a clamping bracket located on the main beam, the transverse guide rail is arranged on the transverse base plate and the clamping bracket, the transverse slider is engaged and slidably arranged on the transverse guide rail, the transverse slide plate is arranged on the transverse slider, and the threaded transmission assembly is arranged on the transverse slide plate.

[0023] Preferably, the threaded transmission assembly includes a fixed screw, a nut rotation bracket and a transverse nut, the fixed screw is fixed to the transverse base plate, the nut rotation bracket is fixed to the transverse slide plate, the transverse nut rotation is arranged in the nut rotation bracket, and the transverse nut and the fixed screw are threadedly transmitted.

[0024] As a further preferred embodiment of the present invention, the other one of the synchronous wheels is fixedly connected to the transverse nut.

[0025] The beneficial effects achieved by the present invention using the above structure are as follows:

[0026] (1) The clamping and fixing mechanism can not only realize the position fixation of the device between the main beam and the reinforcing rib respectively, but also can feed back the locking pressure at this time to the angle adjustment mechanism, so as to achieve the technical purpose that the angle adjustment mechanism and the lateral adjustment mechanism can be driven to adjust only when the locking pressure reaches a certain level; the above-mentioned fool-proof design effectively reduces the problems caused by confusion in the operating steps and improves the fault tolerance rate during human operation.

[0027] (2) By bringing the clamping plate and the clamping bracket closer to each other, the main beam and the reinforcing ribs can be squeezed and clamped. Since the pressure of the clamping plate is applied by the pressure push plate through the pressure spring, the compression amount of the pressure spring can be effectively fed back by feeding back the distance between the clamping plate and the pressure push plate. Therefore, when facing main beams or reinforcing ribs of different thickness specifications, feedback can be given on whether the "clamping force meets the standard".

[0028] (3) By driving the clutch assembly to control the clutch state, after the clamping is completed (the clamping force reaches a certain level), the drive motor is started to adjust the angle adjustment mechanism and the lateral adjustment mechanism, thereby avoiding the problem of parts displacement caused by accidental touch before clamping.

[0029] (4) The output shaft and the housing of the driving motor can rotate relative to each other. When the housing is stationary, the output shaft of the driving motor can rotate with the coupling. When the output shaft of the driving motor cannot rotate, the driving motor will drive the lateral adjustment mechanism through the rotation of the housing.

[0030] (5) The annular piston and the clutch control chamber can only slide axially relative to each other, and cannot rotate relative to each other; the resistance of the hollow worm gear pushing the arc-shaped adjustment arm to slide is smaller than the resistance of the drive motor rotating in the motor rotating bracket. Therefore, the drive of the drive motor can actually be divided into two stages. In the first stage, only the angle adjustment mechanism can be driven. After the angle adjustment of the reinforcement rib is completed, the lateral adjustment mechanism can be adjusted.

[0031] (6) By controlling the amount of liquid in the clutch chamber, the engagement and separation of the two engagement plates can be controlled, thereby controlling the engagement and separation between the hollow worm and the rotating shaft, and further controlling whether the drive motor can drive the angle adjustment mechanism and the lateral adjustment mechanism to move. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A three-dimensional diagram of a bracket clamping and welding device with a triangular structure proposed by the present invention;

[0033] Figure 2 This is a front view of a bracket clamping and welding device with a triangular structure proposed by the present invention;

[0034] Figure 3 It is a left view of a triangular structure bracket clamping welding device proposed by the present invention;

[0035] Figure 4 A top view of a bracket clamping and welding device with a triangular structure proposed by the present invention;

[0036] Figure 5 for Figure 2 A cross-sectional view along the cutting line AA;

[0037] Figure 6 for Figure 3 A cross-sectional view along the cutting line BB;

[0038] Figure 7 for Figure 3 A cross-sectional view along the cutting line CC;

[0039] Figure 8 for Figure 2 A cross-sectional view along the cutting line DD;

[0040] Fig. 9 This is a schematic diagram of the exploded structure of a triangular structure bracket clamping welding device proposed by the present invention;

[0041] Fig.10 for Figure 6 A partial enlarged view of point Ⅰ in the middle;

[0042] Fig.11 for Figure 8 A partial enlarged view of the middle II;

[0043] Fig.12 for Fig. 9 A partial enlarged view of the middle part III;

[0044] Fig.13 for Fig. 9 A partial enlarged view of point IV in the middle.

[0045] Among them, 1. Parts to be welded, 2. Clamping and fixing mechanism, 3. Angle adjustment mechanism, 4. Transverse adjustment mechanism, 5. Main beam, 6. Reinforcement ribs, 7. Clamping bracket, 8. Extrusion clamping assembly, 9. Clamping feedback assembly, 10. Extrusion guide frame, 11. Clamping plate, 12. Telescopic push rod, 13. Pressure push plate, 14. Pressure spring, 15. Pressure sensing chamber, 16. Pressure sensing piston, 17. Dual-mode drive assembly, 18. Angle adjustment assembly, 19. Drive clutch assembly, 20. Motor rotation bracket, 21. Drive motor, 22. Coupling, 23. Synchronous wheel, 24. Synchronous belt, 25. Drive control module, 26. Arc-shaped adjustment bracket, 27. Arc-shaped adjustment arm, 28. Worm rotating bracket, 29. Hollow worm, 30. Rotating shaft, 31. Clutch control chamber, 32. Annular piston, 33. Reset spring, 34. Combination plate, 35. Bevel gear part, 36. Transverse guide assembly, 37. Thread transmission assembly, 38. Transverse base plate, 39. Transverse guide rail, 40. Transverse slider, 41. Transverse slide plate, 42. Fixed screw, 43. Nut rotating bracket, 44. Transverse nut.

[0046] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0048] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0049] like Figure 1 to Figure 13 As shown, the present invention proposes a bracket clamping welding device with a triangular structure, comprising a part to be welded 1, a clamping and fixing mechanism 2, an angle adjustment mechanism 3 and a transverse adjustment mechanism 4, wherein the part to be welded 1 comprises a main beam 5 and a reinforcing rib 6, the clamping and fixing mechanism 2 is provided with two groups, the two groups of clamping and fixing mechanisms 2 are respectively provided on the main beam 5 and the reinforcing rib 6, the transverse adjustment mechanism 4 is provided on one group of the clamping and fixing mechanisms 2, and the angle adjustment mechanism 3 is provided on the transverse adjustment mechanism 4;

[0050] The clamping and fixing mechanism 2 comprises a clamping bracket 7 , an extrusion clamping assembly 8 and a clamping feedback assembly 9 . The extrusion clamping assembly 8 is arranged on the clamping bracket 7 , and the clamping feedback assembly 9 is arranged in the extrusion clamping assembly 8 .

[0051] The clamping and fixing mechanism 2 can not only realize the position fixation of the device between the main beam 5 and the reinforcing rib 6 respectively, but also can feed back the locking pressure at this time to the angle adjustment mechanism 3, so as to achieve the technical purpose that the angle adjustment mechanism 3 and the lateral adjustment mechanism 4 can be driven for adjustment only when the locking pressure reaches a certain level; the above-mentioned fool-proof design effectively reduces the problems caused by confusion in the operating steps and improves the fault tolerance rate during human operation.

[0052] The extrusion clamping assembly 8 includes an extrusion guide frame 10, a clamping plate 11, a telescopic push rod 12 and a pressure push plate 13. The extrusion guide frame 10 is arranged on the clamping bracket 7. The clamping plate 11 is snap-fitted and slidably arranged in the extrusion guide frame 10. The telescopic push rod 12 is arranged on the clamping bracket 7. The pressure push plate 13 is arranged on the telescopic part of the telescopic push rod 12. The pressure push plate 13 is snap-fitted and slidably arranged in the extrusion guide frame 10.

[0053] The clamping feedback assembly 9 includes a pressure spring 14, a pressure sensing chamber 15 and a pressure sensing piston 16. The pressure spring 14 is arranged between the clamping plate 11 and the pressure pushing plate 13. The pressure sensing chamber 15 is arranged on the pressure pushing plate 13. The pressure sensing piston 16 is arranged on the clamping plate 11. The pressure sensing piston 16 is engaged and slidably arranged in the pressure sensing chamber 15.

[0054] By bringing the clamping plate 11 and the clamping bracket 7 closer to each other, the main beam 5 and the reinforcing rib 6 can be squeezed and clamped; because the pressure of the clamping plate 11 is applied by the pressure push plate 13 through the pressure spring 14, the compression amount of the pressure spring 14 can be effectively fed back by feeding back the distance between the clamping plate 11 and the pressure push plate 13, so that when facing main beams 5 or reinforcing ribs 6 of different thickness specifications, feedback can be given on "whether the clamping force meets the standard".

[0055] The transverse adjustment mechanism 4 includes a transverse guide assembly 36 and a threaded transmission assembly 37. The transverse guide assembly 36 includes a transverse base plate 38, a transverse guide rail 39, a transverse slider 40 and a transverse slide plate 41. The transverse base plate 38 is fixedly connected to the clamping bracket 7 located on the main beam 5. The transverse guide rail 39 is arranged on the transverse base plate 38 and the clamping bracket 7. The transverse slider 40 is engaged and slidably arranged on the transverse guide rail 39. The transverse slide plate 41 is arranged on the transverse slider 40. The threaded transmission assembly 37 is arranged on the transverse slide plate 41.

[0056] The threaded transmission assembly 37 includes a fixed screw 42, a nut rotating bracket 43 and a transverse nut 44. The fixed screw 42 is fixedly connected to the transverse base plate 38, the nut rotating bracket 43 is fixedly connected to the transverse slide plate 41, and the transverse nut 44 is rotatably arranged in the nut rotating bracket 43. The transverse nut 44 and the fixed screw 42 are threadedly transmitted.

[0057] The other of the synchronous wheels 23 is fixedly connected to the transverse nut 44 .

[0058] The angle adjustment mechanism 3 includes a dual-mode drive component 17 , an angle adjustment component 18 and a drive clutch component 19 . The dual-mode drive component 17 is arranged on the lateral adjustment mechanism 4 , the angle adjustment component 18 is arranged on the lateral adjustment mechanism 4 , and the drive clutch component 19 is arranged on the angle adjustment component 18 .

[0059] By driving the clutch state control of the clutch assembly 19, after the clamping is completed (the clamping force reaches a certain level), the drive motor 21 is started to adjust the angle adjustment mechanism 3 and the lateral adjustment mechanism 4, thereby avoiding the problem of parts displacement caused by accidental touch before clamping.

[0060] The dual-mode drive assembly 17 includes a motor rotation bracket 20, a drive motor 21, a coupling 22, a synchronous wheel 23, a synchronous belt 24 and a drive control module 25. The motor rotation bracket 20 is arranged on the transverse sliding slide 41. The outer shell of the drive motor 21 is rotatably arranged in the motor rotation bracket 20. There is a rotational resistance between the outer shell of the drive motor 21 and the motor rotation bracket 20. The coupling 22 is arranged on the output shaft of the drive motor 21. One of the synchronous wheels 23 is fixedly connected to the outer shell of the motor rotation bracket 20. The synchronous belt 24 and the synchronous wheel 23 are in rolling contact. The drive control module 25 is arranged on the angle adjustment assembly 18.

[0061] The output shaft and the housing of the drive motor 21 can rotate relative to each other. When the housing is stationary, the output shaft of the drive motor 21 can rotate with the coupling 22. When the output shaft of the drive motor 21 cannot rotate, the drive motor 21 will drive the transverse adjustment mechanism 4 through the rotation of the housing.

[0062] The angle adjustment assembly 18 includes an arc adjustment bracket 26, an arc adjustment arm 27, a worm rotation bracket 28, a hollow worm 29 and a rotating shaft 30. The arc adjustment bracket 26 is arranged on the transverse sliding slide 41, the drive control module 25 is arranged on the arc adjustment bracket 26, the arc adjustment arm 27 is slidably arranged in the arc adjustment bracket 26, the edge of the arc adjustment arm 27 is provided with a helical tooth portion 35 matching the hollow worm 29, the worm rotation bracket 28 is arranged on the transverse sliding slide 41, the hollow worm 29 is rotatably arranged in the worm rotation bracket 28, the rotating shaft 30 is rotatably arranged in the hollow worm 29, and the output shaft of the drive motor 21 and the rotating shaft 30 are connected by a coupling 22.

[0063] The annular piston 32 and the clutch control chamber 31 can only slide axially relative to each other and cannot rotate relative to each other; the resistance of the hollow worm 29 when pushing the arc-shaped adjustment arm 27 to slide is less than the resistance of the drive motor 21 to rotate in the motor rotating bracket 20. Therefore, the drive of the drive motor 21 can actually be divided into two stages. In the first stage, only the angle adjustment mechanism 3 can be driven. After the angle adjustment of the reinforcement rib 6 is completed, the lateral adjustment mechanism 4 can be adjusted.

[0064] The driving clutch assembly 19 includes a clutch control chamber 31, an annular piston 32, a return spring 33 and a coupling plate 34. The clutch control chamber 31 is fixedly connected to the end of the rotating shaft 30. The annular piston 32 is slidably arranged in the clutch control chamber 31. The return spring 33 is arranged between the bottom wall of the clutch control chamber 31 and the annular piston 32. There are two groups of coupling plates 34 arranged opposite to each other. One of the coupling plates 34 is fixedly connected to the end of the hollow worm 29, and the other of the coupling plates 34 is fixedly connected to the annular piston 32.

[0065] By controlling the amount of liquid in the clutch control chamber 31, the engagement and separation of the two engaging plates 34 can be controlled, thereby controlling the engagement and separation between the hollow worm 29 and the rotating shaft 30, and further controlling whether the drive motor 21 can drive the angle adjustment mechanism 3 and the lateral adjustment mechanism 4 to move.

[0066] When used specifically, the main beam 5 and the reinforcing rib 6 are angle steels. In the initial state, the angle between the main beam 5 and the reinforcing rib 6 is relatively small, and the clamped thin sheets are partially overlapped;

[0067] First, the user needs to place the clamping and fixing mechanism 2 at a suitable target position on the main beam 5 and the reinforcing rib 6, and drive the telescopic push rod 12 to extend by hydraulic or electric means through the driving control module 25. When the telescopic push rod 12 pushes the pressure push plate 13 toward the clamping plate 11, the clamping plate 11 can be pushed by the pressure spring 14. When the clamping plate 11 also contacts the main beam 5 or the reinforcing rib 6, the continued advancement of the pressure push plate 13 will compress the pressure spring 14, thereby increasing the clamping force of the clamping and fixing mechanism 2;

[0068] During the compression of the pressure spring 14 , the pressure sensing piston 16 will also intrude into the pressure sensing chamber 15 , thereby squeezing out the liquid in the pressure sensing chamber 15 . The discharge amount of the liquid in the pressure sensing chamber 15 can provide feedback on the clamping degree of the clamping and fixing mechanism 2 .

[0069] The two clamping and fixing mechanisms 2 are both provided with a pressure sensing chamber 15 and a pressure sensing piston 16, and the two pressure sensing chambers 15 are both connected to the joint on the clutch control chamber 31 through a pipeline; the two sets of clamping and fixing mechanisms 2 are clamped at the same time, and the liquid enters the clutch control chamber 31 from the pressure sensing chamber 15, which will push the annular piston 32 to extend. When the clamping force of the clamping and fixing mechanisms 2 increases to a certain extent, the two coupling plates 34 will be pressed and coupled;

[0070] If the drive motor 21 is started before, the rotating shaft 30 will idle in the hollow worm 29 and cannot drive the angle adjustment mechanism 3 and the lateral adjustment mechanism 4; thereafter, the drive motor 21 is started again, because the hollow worm 29 and the rotating shaft 30 have been connected and fixed by the driving clutch assembly 19, and because the resistance of the hollow worm 29 when pushing the arc-shaped adjustment arm 27 to slide is less than the resistance of the drive motor 21 rotating in the motor rotating bracket 20, the housing of the drive motor 21 is stationary in the motor rotating bracket 20, and the output shaft of the drive motor 21 rotates with the rotating shaft 30 and the hollow worm 29, so that the arc-shaped adjustment arm 27 slides in the arc-shaped adjustment bracket 26 through the worm gear transmission between the arc-shaped adjustment arm 27 and the hollow worm 29;

[0071] The arc-shaped adjustment bracket 26 can adjust the angle of the reinforcing rib 6 when it slides. Since the angle between the main beam 5 and the reinforcing rib 6 is relatively small in the initial state, when the clamping and fixing mechanism 2 clamps and fixes the reinforcing rib 6, the reinforcing rib 6 will actually undergo a small deformation due to its own elasticity. When the angle adjustment of the reinforcing rib 6 is completed, the main beam 5 and the reinforcing rib 6 are no longer stacked. At this time, the reinforcing rib 6 will rebound to a position in the same plane as the main beam 5. At this time, due to the interference between the main beam 5 and the reinforcing rib 6, the arc-shaped adjustment arm 27 cannot slide in the arc-shaped adjustment bracket 26; at this point, the angle adjustment of the reinforcing rib 6 is completed with the main beam 5 as the reference.

[0072] After the angle adjustment is completed, since the arc-shaped adjustment arm 27 cannot slide, the hollow worm 29 and the rotating shaft 30 cannot rotate. At this time, the drive motor 21 is started again, and the outer shell of the drive motor 21 will rotate in the motor rotating bracket 20. At this time, the synchronous wheel 23 and the synchronous belt 24 can drive the transverse nut 44 to rotate. The threaded connection between the fixed screw 42 and the transverse nut 44 can push the transverse slide plate 41 to slide, thereby adjusting the lateral position of the reinforcement rib 6 based on the main beam 5.

[0073] Since both the threaded transmission and the worm gear transmission have a self-locking phenomenon, and the drive motor 21 can be set to an enabled state; therefore, during welding, stress and external force will not overcome the locking state and cause the main beam 5 and the reinforcing rib 6 to deviate significantly.

[0074] It should be noted that the relative position of the clamping and fixing mechanism 2 and the main beam 5 may not be so precise because it can be adjusted at the end, but the relative position of the reinforcement 6 and the clamping and fixing mechanism 2 cannot deviate too much. If the clamping position is too close to the welding position, then when the reinforcement 6 rebounds to a position in the same plane as the main beam 5, there will still be a large angle between the cut of the reinforcement 6 and the main beam 5; if the clamping position is too far away from the welding position, then the reinforcement 6 may never rebound to a position in the same plane as the main beam 5; the above situations are not conducive to welding.

[0075] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0076] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A bracket clamping welding device with a triangular structure, comprising a part to be welded (1), wherein the part to be welded (1) comprises a main beam (5) and a reinforcing rib (6), characterized in that: It also includes a clamping and fixing mechanism (2), an angle adjustment mechanism (3) and a transverse adjustment mechanism (4), wherein the clamping and fixing mechanism (2) is provided with two groups, the two groups of clamping and fixing mechanisms (2) are respectively provided on the main beam (5) and the reinforcing rib (6), the transverse adjustment mechanism (4) is provided on one group of the clamping and fixing mechanisms (2), and the angle adjustment mechanism (3) is provided on the transverse adjustment mechanism (4); The clamping and fixing mechanism (2) comprises a clamping bracket (7), an extrusion clamping assembly (8) and a clamping feedback assembly (9), wherein the extrusion clamping assembly (8) is arranged on the clamping bracket (7), and the clamping feedback assembly (9) is arranged in the extrusion clamping assembly (8); the clamping feedback assembly (9) comprises a pressure spring (14), a pressure sensing chamber (15) and a pressure sensing piston (16), wherein the pressure spring (14) is arranged between the clamping plate (11) and the pressure pushing plate (13), the pressure sensing chamber (15) is arranged on the pressure pushing plate (13), the pressure sensing piston (16) is arranged on the clamping plate (11), and the pressure sensing piston (16) is slidably arranged in the pressure sensing chamber (15); The angle adjustment mechanism (3) comprises a dual-mode drive assembly (17), an angle adjustment assembly (18) and a drive clutch assembly (19); the dual-mode drive assembly (17) is arranged on the transverse adjustment mechanism (4); the angle adjustment assembly (18) is arranged on the transverse adjustment mechanism (4); and the drive clutch assembly (19) is arranged on the angle adjustment assembly (18); the drive clutch assembly (19) comprises a clutch control chamber (31), an annular piston (32), a return spring (33) and a coupling plate (34); the clutch control chamber (31) is fixedly connected to the end of the rotating shaft (30); the annular piston (32) is fixedly connected to the end of the rotating shaft (30); and the The piston (32) is slidably engaged in the clutch control chamber (31), the return spring (33) is arranged between the bottom wall of the clutch control chamber (31) and the annular piston (32), two groups of the coupling plates (34) are arranged opposite to each other, one of the coupling plates (34) is fixedly connected to the end of the hollow worm (29), and the other of the coupling plates (34) is fixedly connected to the annular piston (32); the clamping force is fed back through the compression amount of the pressure spring (14) of the clamping feedback assembly (9), and the clutch assembly (19) is driven in linkage to control the operation sequence of the angle adjustment mechanism (3) and the lateral adjustment mechanism (4).

2. A triangular structure bracket clamping and welding device according to claim 1, characterized in that: The extrusion clamping assembly (8) comprises an extrusion guide frame (10), a clamping plate (11), a telescopic push rod (12) and a pressure push plate (13); the extrusion guide frame (10) is arranged on the clamping bracket (7); the clamping plate (11) is slidably arranged in the extrusion guide frame (10); the telescopic push rod (12) is arranged on the clamping bracket (7); the pressure push plate (13) is arranged on the telescopic part of the telescopic push rod (12); and the pressure push plate (13) is slidably arranged in the extrusion guide frame (10).

3. A triangular structure bracket clamping and welding device according to claim 2, characterized in that: The transverse adjustment mechanism (4) includes a transverse guide assembly (36) and a threaded transmission assembly (37). The transverse guide assembly (36) includes a transverse base plate (38), a transverse guide rail (39), a transverse slider (40) and a transverse slide plate (41). The transverse base plate (38) is fixedly connected to a clamping bracket (7) located on the main beam (5). The transverse guide rail (39) is arranged on the transverse base plate (38) and the clamping bracket (7). The transverse slider (40) is slidably arranged on the transverse guide rail (39). The transverse slide plate (41) is arranged on the transverse slider (40). The threaded transmission assembly (37) is arranged on the transverse slide plate (41).

4. A triangular structure bracket clamping and welding device according to claim 3, characterized in that: The dual-mode drive assembly (17) comprises a motor rotation bracket (20), a drive motor (21), a coupling (22), a synchronous wheel (23), a synchronous belt (24) and a drive control module (25); the motor rotation bracket (20) is arranged on the transverse sliding plate (41); the housing of the drive motor (21) is rotationally arranged in the motor rotation bracket (20); there is a rotational resistance between the housing of the drive motor (21) and the motor rotation bracket (20); the coupling (22) is arranged on the output shaft of the drive motor (21); one of the synchronous wheels (23) is fixedly connected to the housing of the motor rotation bracket (20); the synchronous belt (24) and the synchronous wheel (23) are in rolling contact; and the drive control module (25) is arranged on the angle adjustment assembly (18).

5. A triangular structure bracket clamping and welding device according to claim 4, characterized in that: The angle adjustment assembly (18) comprises an arc-shaped adjustment bracket (26), an arc-shaped adjustment arm (27), a worm rotating bracket (28), a hollow worm (29) and a rotating shaft (30); the arc-shaped adjustment bracket (26) is arranged on a transverse sliding plate (41); the drive control module (25) is arranged on the arc-shaped adjustment bracket (26); the arc-shaped adjustment arm (27) is slidably arranged in the arc-shaped adjustment bracket (26); the edge of the arc-shaped adjustment arm (27) is provided with a helical tooth portion (35) matching the hollow worm (29); the worm rotating bracket (28) is arranged on the transverse sliding plate (41); the hollow worm (29) is rotatably arranged in the worm rotating bracket (28); the rotating shaft (30) is rotatably arranged in the hollow worm (29); and the output shaft of the drive motor (21) and the rotating shaft (30) are connected via a coupling (22).

6. A triangular structure bracket clamping and welding device according to claim 5, characterized in that: The threaded transmission assembly (37) comprises a fixed screw (42), a nut rotating bracket (43) and a transverse nut (44); the fixed screw (42) is fixedly connected to the transverse bottom plate (38); the nut rotating bracket (43) is fixedly connected to the transverse slide plate (41); the transverse nut (44) is rotatably arranged in the nut rotating bracket (43); and the transverse nut (44) and the fixed screw (42) are threadedly transmitted.

7. A triangular structure bracket clamping and welding device according to claim 6, characterized in that: The other of the synchronous wheels (23) is fixedly connected to the transverse nut (44).

8. The triangular structure bracket clamping and welding device according to claim 7, characterized in that: The resistance of the hollow worm (29) when pushing the arc-shaped adjustment arm (27) to slide is smaller than the resistance of the driving motor (21) rotating in the motor rotating bracket (20).

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